2AULH-BT20SPROBluetooth earphone

60X80 BT20S pro <1> 2 <2><4> <8><9><10><11> 1 BT20S pro双耳无线蓝牙模块 双耳真无线蓝牙模块 LED指示灯 收纳网 拉链 充电接口(Type-C) 蓝牙耳挂1对 充电盒1个 Type-C充电线1条 合格证说明书 感谢您选择BT20S pro双耳无线蓝牙模块 请仔细阅读说明书并妥善保存以便查阅。 检验合格 芯片：Qualcomm QCC3020 版本：BT 5.0 RF载波频率：2402Mhz-2480MHz 传输距离：最大10米 蓝牙Profile：HFP V1.7;SBC;APTX;HSP V1.2;A2DP V1.3;AVRCP V1.6；SPP1.2 音乐/通话时间：约9小时（最小音量加6格） 充电时间：耳机充电约1.5小时 输入电压：DC 5V （充电器输出电流需大于0.5A） 电池容量：80 mAh/每边 充电舱电量：700mAh 待机时间：最大180小时 自动关机时间：未连接状态3分钟 MIC 硅咪 3722 灵敏度-42db±3dB 工作温度 0～40°C /存储温度 -10～50°C 注意事项： Taiwan regulatory information(NCC) 低功率電波輻射性電機管理辦法 第十二條經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不 得擅自變更頻率、加大功率、或變更原設計之特性及功能。 第十四條低功率射頻電機之使用不得影響飛航安全及干擾合法適信；經發現有干擾 現象時，應立即停用，並改善至無干擾時方得繼繽使用。 前項合法通信，指依電信法規定作業之無線電通信。 低功率射頻電機須忍受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾 400-8080-302 服务热线: http://www.trn-hifi.com 地址:广东省东莞市虎门镇白沙大路中67号5楼 邮箱:[email protected] USER MANUAL 说明书 包装内容 产品概览 操作说明 1.从充电仓拿起来自动开机 2.长按多功能键1秒开机 开机 1.把耳机放进充电仓自动关机 2.在开机未连接对耳设备状态下，放进 充电仓或者长按耳机多功能键3秒关机 3.在开机已连接对耳设备状态下直接 放进充电仓关机或者长按任意一台机 子的多功能键5秒关机，另外一台耳机会 跟手机回连 关机 左右耳机开机后自动进入对等设备 搜索状态，搜索时间3分钟。 左右耳机配对 在手机上点击搜索到的耳机配对名 耳机和手机配对 和手机连接 LED状态 蓝灯闪3下 开机 关机-红灯长亮1秒 关机 红蓝灯交替闪烁-0.3s闪一次 左右耳机配对 红蓝灯交替闪烁-1s闪一次 和手机配对 红蓝灯同时闪烁 清除配对 红灯快闪5次 低电报警 红蓝灯交替闪-1s闪一次 和手机断开连接 充满电 红灯亮 充电 对耳连上之后，主耳进入配对状态， 可跟手机连接状态。 左右耳机连接 开机连续长按10秒清除手机跟耳机，耳 机跟耳机之间的配对信息 清除配对 三击多功能键上一曲 上一曲 双击多功能键下一曲 下一曲 在来电状态下，短按一下多功能键， 立体声通话 接听电话 双击多功能键拒接 拒接电话 在通话中或去电中，短按一下多功能键 挂断电话 连机待机状态下或者播放音乐时，长按 多功能键1秒后释放按键 (激活手机语音助手) 语音拨号 在关机状态下，长按多功能键5秒进入 配对搜索状态，搜索时间3分钟，未配 对到手机后3分钟自动关机 和手机配对 <7><6> 音调提示音 “PowerOn” 开机 “Power Off” 关机 “Pairing” 左右配对 “pairing” 和手机配对 “connected” 和手机连接 “嘟” 语音拨号 “嘟” 通话切换 “PowerOff” disconnected,PowerOff 自动关机 “咚咚咚咚” 清除配对 “咚咚咚咚” 清除配对 “connected” 回连 “嘟” 拒接电话 “嘟” 拒接电话 “battery low pleasecharge” 低电报警 “disconnected, pairing” 和手机断开连接 参数 5 3 4 LED <3> 多功能键 充电接口 可更换插拔 指示灯 左耳(主) 右耳（副） <5> 手机端主动断开蓝牙 和手机断开连接 在苹果手机上可以显示蓝牙耳机电量 IOS电量显示 在通话状态下双击，耳机与手机通话 相互切换 通话切换 电池容量80mAH，充电电流60±10%MA 充电红灯长亮，充电时耳机关机 充电 连接模式下，点击微信/QQ语音信息 /录入微信语音信息 微信/QQ语音听取/录入 1.开机之后无连接，3分钟后蓝牙耳机 关机 2.在电池电量低于3.1V时蓝牙耳机关机 视频/游戏声音输出 自动关机 在电池电压低于3.4V时低电提示，低 电报警每隔一分钟提示一次 连接模式下，播放视频/打开游戏 低电报警 连机待机或听歌中 已连接对等设备，按一下任意一边 耳机的多功能键暂停/播放 暂停/播放 大约1-2小时，充满电后蓝灯长亮 充满电 1.在连接范围内，开机后主耳自动 连接已配对过的蓝牙设备-副耳不 做回连功能 2.通话、去电、来电、待机、听音乐期 间远离，设备（3分钟时间内）回到可 连接范围 回连 BT20S pro <1> 2 <2><4> <8> 1 BT20S pro Binaural wireless Bluetooth module True wireless Bluetooth upgrade module Accessories compartment Zipper Charging interface( Type-C） 1 pairs of Bluetooth ears. Charging case (1 unit) USB charging line 1 CertificateInstructions Thank you for choosing BT20S pro binaural wireless Bluetooth module.Please read the instructions carefully and keep them for inspection. 检验合格 USER MANUAL INSTRUCTIONS Packaging content Product overview INSTRUCTIONS 1.Bluetooth modules turn on automatically when removedfrom charging case. 2.Long press button for 1 second TURN ON 1.When both Bluetooth modules areturned on, return to charging case. Long press button on both Bluetooth modules for 3 seconds to turn off. 2.When both Bluetooth modules are turned on, return to the charging case. Long press button of one of the modules for 5 seconds to turn off, while the other module will remain on and remain connected to the phone. 3.Return both Bluetooth modules to charging case to turn off TURN OFF Both Bluetooth modules enter leftand right pairing mode once turned on. Pairing mode takesno longer than 3 minutes. Left and right pairing Search for available Bluetooth device on the phone. Once found, press stated device to pair. Connecting to phone LED STATUS Flashes BLUE 3 times TURN ON Turn off ‒ LED flashes red for 1 second LED flashes red and blue simultaneously every 1 second interval LED flashes red and blue simultaneously every 0.3 second interval LED flashes red and blue Flashes BLUE 5 times LED flashes red and blue simultaneously every 1 second interval LED turns off LED indicates red After both left and right Bluetooth modules are paired, pairing mode will follow. Left and right connected Press and hold button for 10 secondsto unpair from phone Unpair from phone Unpair from phone Press button 2 times for NEXT track. Press button 3 times for PREVIOUS track. Track selection To answer call, press button ONCE to answer call. Answer call To end call, press button ONCE End call Press button TWICE to reject call. Reject call During standby mode or playing music, press and hold down button for 1 second, release to activate voice assist dialing. Voice assist dialing When both Bluetooth modules are turned off, press and hold button for 5 seconds to enter pairing mode. Modules shut off auto matically after 3 minutes when not paired with any device. Pairing to device <7><6> FUNCTION SOUND “PowerOn” TURN ON “Power Off” TURN OFF TURN OFF “Pairing” PAIRING Pairing to device “pairing” Left and right pairing Left and right pairing “connected” “Beep” Voice assist dialing “Beep” Call toggling “PowerOff” disconnected,PowerOff Auto shut-off “boom boom boom” Pairing to device “boom boom boom” Unpair from phone “connected” Reconnect to last paired device “Beep” Reject call “Beep” End call “battery low pleasecharge” Low battery warning “disconnected, pairing” Unpair modules from phone 5 3 4 <3> Multiple use key Charging interface Swappable earpiece connectors Left ear (main) Right ear (pair) <5> Unpair modules from the phone menu under connected Bluetooth devices. Unpair modules from phone Unpair modules from phone Remaining power of Bluetooth modules can be viewed on devices with the latest iOS Power indicator with iOS devices Press button TWICE to toggle between earpiece and phone Call toggling Battery capacity is 70mAH. Recommended charging current is 60mA ± 10%. LED indicates red until full-charge. Charging Charging Within WeChat or QQ app, click on the voice message you wish to hear. Listen to WeChat or QQ voice message 1.When not connect to a Bluetooth device for longer than 3 minutes. 2.When power drops below 3.1V Watching video or gaming Auto shut-off Earpieces will emit a beep every minute when battery power drops below 3.4V. Watch video or pla…

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Dongguan Zuodu Acoustics Technology Co., Ltd. Model Difference Product Name: BT20S pro Binaural wireless Bluetooth module Model Number: BT20S pro, BT30, T200s, T300, BT30 pro FCC Identifier: All the models are the same circuit and RF module, except the model names and outlook color. Regards Sincerely Client’s signature Client’s name / title : Jing Can / Manager Contact information / address: Floor 5, No,67 Baisha Road, Humen Town, Dongguan City, Guangdong Province, China 2AULH-BT20SPRO

Dongguan Zuodu Acoustics Technology Co., Ltd. 1/1 Letter of Authorization Company: Dongguan Zuodu Acoustics Technology Co., Ltd. Address: Floor 5, No,67 Baisha Road, Humen Town, Dongguan City, Guangdong Province, China Product Name: BT20S pro Binaural wireless Bluetooth module Model Number: BT20S pro, BT30, T200s, T300, BT30 pro FCC Identifier: We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Jing Can Date: 2020-09-10 Title: Manager Signature of applicant: 2AULH-BT20SPRO

Dongguan Zuodu Acoustics Technology Co., Ltd. 1/1 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2020-09-10 Subject: Request for Confidentiality FCC ID: 2AULH-BT20SPRO To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual No ☐ Internal Photos No ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Jing Can Title: Manager

Size:5*10mm M/N: BT20S pro FCC ID: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Label location 2AULH-BT20SPRO

Antenna location

Global United Technology Services Co., Ltd. Report No.: GTS202009000013F01 Authorized Signature: Robinson Lo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 42 + TEST REPORT Applicant: Dongguan Zuodu Acoustics Technology Co., Ltd. Address of Applicant: Floor 5, No,67 Baisha Road, Humen Town, Dongguan City, Guangdong Province, China Manufacturer: Dongguan Zuodu Acoustics Technology Co., Ltd. Address of Manufacturer: Floor 5, No,67 Baisha Road, Humen Town, Dongguan City, Guangdong Province, China Equipment Under Test (EUT) Product Name: BT20S pro Binaural wireless Bluetooth module Model No.: BT20S pro, BT30, T200s, T300, BT30 pro Trade Mark: N/A FCC ID: 2AULH-BT20SPRO Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.249 Date of sample receipt: Aug. 26, 2020 Date of Test: Aug. 26, 2020 - Sep. 04, 2020 Date of report issued: Sep. 04, 2020 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTS202009000013F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 42 2 Version Version No. Date Description 00 Sep. 04, 2020 Original Prepared By: Date: Sep. 04, 2020 Project Engineer Check By: Date: Sep. 04, 2020 Reviewer Report No.: GTS202009000013F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 42 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 VERSION .................................................................................................................................................. 2 3 CONTENTS .............................................................................................................................................. 3 4 TEST SUMMARY ..................................................................................................................................... 4 4.1 MEASUREMENT UNCERTAINTY ............................................................................................................ 4 5 GENERAL INFORMATION ...................................................................................................................... 5 5.1 GENERAL DESCRIPTION OF EUT ......................................................................................................... 5 5.2 TEST MODE ........................................................................................................................................ 7 5.3 DESCRIPTION OF SUPPORT UNITS ....................................................................................................... 7 5.4 DEVIATION FROM STANDARDS ............................................................................................................ 7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS .................................................................................. 7 5.6 TEST FACILITY ................................................................................................................................... 8 5.7 TEST LOCATION ................................................................................................................................. 8 5.8 ADDITIONAL INSTRUCTIONS ................................................................................................................ 8 6 TEST INSTRUMENTS LIST ..................................................................................................................... 9 7 TEST RESULTS AND MEASUREMENT DATA .................................................................................... 11 7.1 ANTENNA REQUIREMENT ................................................................................................................... 11 7.2 CONDUCTED EMISSIONS ................................................................................................................... 12 7.3 RADIATED EMISSION METHOD ........................................................................................................... 15 7.3.1 Field Strength of The Fundamental Signal ................................................................................ 17 7.3.2 Spurious emissions .................................................................................................................... 19 7.3.3 Bandedge emissions .................................................................................................................. 30 7.4 20DB OCCUPY BANDWIDTH .............................................................................................................. 31 8 TEST SETUP PHOTO ............................................................................................................................ 34 9 EUT CONSTRUCTIONAL DETAILS ..................................................................................................... 36 Report No.: GTS202009000013F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 4 of 42 4 Test Summary Test Item Section in CFR 47 Result Antenna requirement 15.203 Pass AC Power Line Conducted Emission 15.207 Pass …

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Measurement Photos